WGU D278 EXAM QUESTIONS AND CORRECT
ANSWERS
What does a programmer do first to use an existing programming library? - CORRECT -
ANSWERS Include the library
What relationship is common among a programming library's functions? - CORRECT -
ANSWERS Functions all relate to the same purpose.
What is an advantage of using a programming library? - CORRECT - ANSWERS The code
has already been tested.
Which language is dynamically typed? - CORRECT - ANSWERS Python
Which language is not built on object-oriented design principles? - CORRECT - ANSWERS
C
A language substantially supports a programmer creating items like person, teacher, and
students. Each item has internal data and some operations.
Which characteristic describes that language? - CORRECT - ANSWERS Object-oriented
A programmer wants a compiler to report an error if an integer variable is assigned with a
string.
Which type of language should the programmer use? - CORRECT - ANSWERS Statically
Typed
, A language uses tags around text to indicate how that text should be formatted.
Which characteristic describes a language having such tags? - CORRECT - ANSWERS
Markup
What is a characteristic of compiled language? - CORRECT - ANSWERS Converts to
machine language before running
What is a characteristic of interpreted programs? - CORRECT - ANSWERS They can be
modified at run time
Which characteristic specifically describes a markup language? - CORRECT - ANSWERS
Tags surround text to describe desired formatting
Which characteristic specifically describes interpreted language? - CORRECT - ANSWERS
They can run on any machine having the right interpreter
Which data type is used for items that are measured in length? - CORRECT - ANSWERS
Float
What is the purpose of parentheses () in a programming expression? - CORRECT - ANSWERS
To group expressions
Which data type should be used to keep track of how many planes are in a hanger? -
CORRECT - ANSWERS Integer
What is a valid user-defined function name? - CORRECT - ANSWERS Variable identifier
ANSWERS
What does a programmer do first to use an existing programming library? - CORRECT -
ANSWERS Include the library
What relationship is common among a programming library's functions? - CORRECT -
ANSWERS Functions all relate to the same purpose.
What is an advantage of using a programming library? - CORRECT - ANSWERS The code
has already been tested.
Which language is dynamically typed? - CORRECT - ANSWERS Python
Which language is not built on object-oriented design principles? - CORRECT - ANSWERS
C
A language substantially supports a programmer creating items like person, teacher, and
students. Each item has internal data and some operations.
Which characteristic describes that language? - CORRECT - ANSWERS Object-oriented
A programmer wants a compiler to report an error if an integer variable is assigned with a
string.
Which type of language should the programmer use? - CORRECT - ANSWERS Statically
Typed
, A language uses tags around text to indicate how that text should be formatted.
Which characteristic describes a language having such tags? - CORRECT - ANSWERS
Markup
What is a characteristic of compiled language? - CORRECT - ANSWERS Converts to
machine language before running
What is a characteristic of interpreted programs? - CORRECT - ANSWERS They can be
modified at run time
Which characteristic specifically describes a markup language? - CORRECT - ANSWERS
Tags surround text to describe desired formatting
Which characteristic specifically describes interpreted language? - CORRECT - ANSWERS
They can run on any machine having the right interpreter
Which data type is used for items that are measured in length? - CORRECT - ANSWERS
Float
What is the purpose of parentheses () in a programming expression? - CORRECT - ANSWERS
To group expressions
Which data type should be used to keep track of how many planes are in a hanger? -
CORRECT - ANSWERS Integer
What is a valid user-defined function name? - CORRECT - ANSWERS Variable identifier
